War correspondents arriving in a hot zone now provide an on-the-spot moral and physical inventory that seems different from times past... The absence of the conventional layers of journalism — correspondents filing reports that are then edited for taste and accuracy — has put several journalists under scrutiny, mostly for responding in the moment to what they saw in front of them... The public has developed an expectation that it will know exactly what a reporter knows every single second, and news organizations are increasingly urging their correspondents to use social media to tell their stories — and to extend their brand... Twitter’s ability to carry visual information has made it an even more important part of the news narrative. A message may be only 140 characters, but we all know a picture is worth many, many words... Many of us cannot help looking because of what Susan Sontag has called “the perennial seductiveness of war.” It is a kind of rubbernecking, staring at the bloody aftermath of something that is not an act of God but of man.